Emitting surface of light emitting diode packages

摘要

A LED package comprises:
- a LED chip (1) mounted on a housing, and
- an essentially transparent layer (2) on top of the LED chip (1),
the transparent layer (2) having an essentially flat light exit surface (4). The light exit surface (4) is provided with a plurality of microstructures (5) distributed over the plane of the light exit surface (4). The microstructures (5) are geometrically designed for enhancing the light exit by the microstructures (5) offering differing angles for light rays from the interior of the transparent layer (2).